UIImagePickerController，检查相机 [英] UIImagePickerController,Check camera

问题描述

-(void)viewDidLoad
{
    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
   {
      imagePicker = [[UIImagePickerController alloc] init];
      imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
      imagePicker.showsCameraControls = NO;
      [self.view addSubview:imagePicker.view];
      }
      else
      {
      // UIAlertView…
      }
}

    -(void)viewDidAppear:(BOOL)animated
    {
        [super viewDidAppear:animated];
        imagePicker.delegate = self;
        [self presentViewController:imagePicker animated:NO completion:NO];
    }

我想在没有相机的情况下发出警报.iPhone应用程序启动并在此代码中移动.但是，崩溃(此错误>

I want to put out an alert when you do not have a camera. IPhone app launch and move in this code. But, Crash (This Error >

返回UIApplicationMain(argc，argv，nil，NSStringFromClass([CameraAppDelegate class]));>在模拟器中运行时，线程1:发出信号SIGABRT).

这是为什么?

推荐答案

使用此代码，并在 .h 文件

 if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])  
    {
       UIImagePickerController* picker = [[UIImagePickerController alloc] init];
       picker.sourceType = UIImagePickerControllerSourceTypeCamera;
       picker.delegate = self;
      picker.wantsFullScreenLayout = YES;
      [self presentModalViewController:picker animated:YES];
    }
    else
    {
        UIAlertView *altnot=[[UIAlertView alloc]initWithTitle:@"Camera Not Available" message:@"Camera Not Available" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
        altnot.tag=103;
        [altnot show];
        [altnot release];

    }

这篇关于UIImagePickerController，检查相机的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！